File:Gallagher-1953-imprimatur.jpg|thumb|An ''imprimi potest'', a ''nihil obstat'' and an ''imprimatur'' (by Richard Cushing) on a book published by Random House in 1953. The book in question is the English translation by Louis J. Gallagher, Society of Jesus|S.J. of ''De Christiana expeditione apud Sinas'' by Matteo Ricci, S.J. and Nicolas Trigault, S.J.
'''''Nihil obstat''''' (Latin
for "nothing hinders" or "nothing stands in the way")
is a declaration of no objection to an initiative or an appointment.
Apart from this general sense, the phrase is used more particularly to mean an "attestation by a church censor that a book contains nothing damaging to faith or morals".
The ''Censor Librorum
'' delegated by a Bishop (Catholic Church)|bishop
of the Catholic Church
reviews the text in question, but the ''nihil obstat'' is not a certification that...